CN211172112U

CN211172112U - Damping device for mine blasting

Info

Publication number: CN211172112U
Application number: CN201921868904.0U
Authority: CN
Inventors: 李银忠; 刘敬智; 彭杰
Original assignee: WANBAO MINING Ltd
Current assignee: WANBAO MINING Ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-08-04
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to a damping device of mine blasting. The damping device comprises a plurality of damping pipes (2), an opening pipe cap (1), a bottom pipe cap (5) and filler (4); be provided with a plurality of shock attenuation holes in one side of building towards the blasting source, place respectively in a plurality of shock attenuation holes in a plurality of shock attenuation pipes (2), oral area pipe cap (1) and bottom pipe cap (5) shutoff are at the both ends of shock attenuation pipe, and filler (4) fill up the space between the inner periphery in shock attenuation hole and the periphery of damper cylinder. The utility model discloses a degree of depth shock attenuation has improved the shock attenuation effect.

Description

Damping device for mine blasting

Technical Field

The utility model belongs to the technical field of the mine engineering, concretely relates to damping device of mine blasting.

Background

Blasting operation in mine production vibrates surrounding buildings, and particularly, the blasting operation is prevented from influencing the historic buildings under the condition that the historic buildings exist around the mine. At present, an open trench is usually arranged in front of a building, shock waves are blocked through the open trench, the building is protected, the structure is large in excavation amount, the excavation depth is limited, and the effect is limited.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a damping device of mine blasting has realized the degree of depth shock attenuation, has improved the shock attenuation effect.

The technical scheme of the utility model is that the damping device for mine blasting comprises a plurality of damping pipes, an opening pipe cap, a bottom pipe cap and fillers; be provided with a plurality of shock attenuation holes in one side of building towards the blasting source, a plurality of shock attenuation pipes are placed respectively in a plurality of shock attenuation holes, and oral area pipe cap and bottom pipe cap shutoff respectively are at the both ends of shock attenuation pipe, and the filler fills up the space between the inner periphery in shock attenuation hole and the periphery of shock attenuation pipe.

And a plurality of anti-skidding grooves are formed in the periphery of the shock absorption tube.

Water is injected into the shock absorption pipe.

The plurality of damping holes are distributed in a staggered manner in rows.

The plurality of shock absorption holes are distributed in a staggered manner in rows, namely the shock absorption holes in two adjacent rows are staggered.

The distance between two adjacent shock absorption holes in the same row is less than 2 meters, and the distance between two adjacent rows is less than 1 meter.

The beneficial effects of the utility model, the utility model discloses a shock attenuation pipe most is located below the earth's surface, does not destroy the environment, and effective separation vibrations ripples's transmission, vibrations ripples decay is about 30%.

Drawings

Fig. 1 is a schematic structural view of a damping device for mine blasting according to the present invention;

fig. 2 is the distribution schematic diagram of the shock absorbing holes in the utility model.

Detailed Description

As shown in fig. 1, the damping device for mine blasting of the present invention comprises a plurality of damping tubes 2, an opening cap 1 and a filler 4. A plurality of shock absorption holes are formed in one side, facing a blasting source, of the building, and a plurality of shock absorption pipes are placed in the shock absorption holes respectively. The mouth pipe cap 1 and the bottom pipe cap are respectively plugged at two ends of the shock absorption pipe. The filler 4 fills the space between the inner circumference of the damper hole and the outer circumference of the damper tube. The filler 4 is river sand to fix the shock-absorbing tube and increase the friction force around the shock-absorbing tube. Be provided with a plurality of antiskid grooves 3 on the shock tube periphery, improve the steadiness of shock tube.

As shown in fig. 2, the plurality of shock absorbing holes are distributed in staggered rows, that is, the shock absorbing holes in two adjacent rows are arranged in a staggered manner. The number of the damping holes in each row is determined according to the length of the building 6, the distance between two adjacent damping holes in the same row is less than 2 meters, and the distance between two adjacent rows is less than 1 meter.

When there is groundwater in the shock attenuation hole, place before the shock attenuation hole at the shock attenuation pipe, with the injected water in the shock attenuation pipe to guarantee that the shock attenuation pipe sinks to the shock attenuation hole bottom smoothly, place the back in place and fix when the shock attenuation pipe, adopt the water pump to go out the log raft in the shock attenuation pipe, and the installation pipe cap.

The utility model is used for open-air copper mine tests, and the protection object is a buddhist temple of 230 meters departments in the north of mining area, and this temple is the important place of local village people's gift Buddha, belongs to key protection object. The utility model discloses an after the implementation, the transmission of effective separation vibrations ripples, vibrations ripples decay is about 30%, does not take place the phenomenon that vibrations exceed standard again, has established solid foundation for lasting the implementation, has high social.

Claims

1. The utility model provides a damping device of mine blasting which characterized by: the damping device comprises a plurality of damping pipes (2), an opening pipe cap (1), a bottom pipe cap (5) and filler (4); be provided with a plurality of shock attenuation holes in one side of building towards the blasting source, place respectively in a plurality of shock attenuation holes in a plurality of shock attenuation pipes (2), oral area pipe cap (1) and bottom pipe cap (5) shutoff respectively are at the both ends of shock attenuation pipe, and filler (4) fill up the space between the inner periphery in shock attenuation hole and the periphery of shock attenuation pipe.

2. A damping device for mine blasting according to claim 1, wherein: the periphery of the shock absorption tube (2) is provided with a plurality of anti-skidding grooves (3).

3. A damping device for mine blasting according to claim 1, wherein: water is injected into the shock absorption pipe.

4. A damping device for mine blasting according to claim 1, wherein: the plurality of damping holes are distributed in a staggered manner in rows.

5. A damping device for mine blasting according to claim 4, wherein: the plurality of shock absorption holes are distributed in a staggered manner in rows, namely the shock absorption holes in two adjacent rows are staggered.

6. A damping device for mine blasting according to claim 4, wherein: the distance between two adjacent shock absorption holes in the same row is less than 2 meters, and the distance between two adjacent rows is less than 1 meter.